ROTARY TYPE SWEEPER

A rotary type sweeper has a housing body within which is mounted a first or conventional roller brush which is rotatable in engagement with the surface to be cleaned when the sweeper is moved forwardly and backwardly. Dust collecting compartments are disposed to the front and rear of the first roller brush, and a second roller brush is rotatably mounted within the housing body and to the front or rear of the first brush roller. The second roller brush has short bristles closely implanted on the surface and inclined in one and the same direction along the circumference of the second roller brush. A first dust removing member which has short bristles closely implanted on the surface and inclined in one and the same direction is movably mounted in engagement with the second roller brush, and a second dust removing member which is stationary and has short bristles closely implanted on the surface and inclined in one and the same direction is engaged by the bristles on the first dust removing member. All the bristles on the second roller brush, first dust removing member and second dust removing member are inclined in the same direction.